Molasses glycemic index (GI)

by Victoria Mazmanyan | Last updated on August 28, 2023

Medically reviewed by Jack Yacoubian

Molasses, also known as black treacle, is produced by refining plants, such as sugarcane and sugar beets, into sugars. As a sweetener, it is naturally high in carbohydrates, containing 75g of it in a 100g serving. Molasses contain about 25% fewer sugars compared to granulated white sugar.

Researchers have not yet calculated an exact number for the glycemic index of molasses. However, here, we will look at the information we do have about the effect of molasses on glycemic response.

The predominant sugar found in molasses is sucrose, which has a glycemic index of 65±4 (1).

Brown sugar is often made by adding molasses to white sugar. Yellow sugar was calculated to have an 84% glycemic index compared to the 100% GI of white sugar (2).

Filtered molasses concentrate, made from sugar cane, was researched to have potential as a natural functional ingredient capable of modifying carbohydrate metabolism and contributing to glycemic index reduction of processed foods and beverages (3).

However, taking calories into consideration is a key feature in regulating body weight and blood markers in regard to diabetes.

In summary, molasses most likely has a moderate glycemic index but can have a GI-lowering quality when added to high glycemic index foods.